Comment-out documentation for IS OF because it doesn't conform to the

ISO SQL behavior. Backpatch removal to 8.2.X.

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 474dc6115097db778974060a94449a13a050ca81..f4dbcb37288d1495f1a9576a4cc873fb588773ec 100644 (file)
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -411,22 +411,6 @@
     <literal>IS NOT NULL</literal>, respectively, except that the input
     expression must be of Boolean type.
    </para>
- 
-   <para>
-    <indexterm>
-     <primary>IS OF</primary>
-    </indexterm>
-    <indexterm>
-     <primary>IS NOT OF</primary>
-    </indexterm>
-    It is possible to check the data type of an expression using the
-    constructs
-<synopsis>
-<replaceable>expression</replaceable> IS OF (typename, ...)
-<replaceable>expression</replaceable> IS NOT OF (typename, ...)
-</synopsis>
-    They return a boolean value based on whether the expression's data
-    type is one of the listed data types.
   </sect1>
 
   <sect1 id="functions-math">

diff --git a/doc/src/sgml/syntax.sgml b/doc/src/sgml/syntax.sgml
index 32975fc79acf45ac6fbcf172f077e2add6e76ad6..0341f2d7f32cb92be722094911ad81a1084d21d6 100644 (file)
--- a/doc/src/sgml/syntax.sgml
+++ b/doc/src/sgml/syntax.sgml
@@ -847,8 +847,7 @@ SELECT (5 !) - 6;
       <row>
        <entry><token>IS</token></entry>
        <entry></entry>
-       <entry><literal>IS TRUE</>, <literal>IS FALSE</>, <literal>IS
-       UNKNOWN</>, <literal>IS NULL</>, <literal>IS OF</></entry>
+       <entry><literal>IS TRUE</>, <literal>IS FALSE</>, <literal>IS UNKNOWN</>, <literal>IS NULL</></entry>
       </row>
 
       <row>